<template>
	<div class="register">
		<el-form
			ref="registerRef"
			:model="registerForm"
			:rules="registerRules"
			class="register-form"
		>
			<h3 class="title">荔枝管理系统</h3>
			<el-form-item prop="username">
				<el-input
					v-model="registerForm.username"
					auto-complete="off"
					placeholder="账号"
					size="large"
					type="text"
				>
					<template #prefix
					>
						<svg-icon
							class="el-input__icon input-icon"
							icon-class="user"
						/>
					</template>
				</el-input>
			</el-form-item>
			<el-form-item prop="password">
				<el-input
					v-model="registerForm.password"
					auto-complete="off"
					placeholder="密码"
					size="large"
					type="password"
					@keyup.enter="handleRegister"
				>
					<template #prefix
					>
						<svg-icon
							class="el-input__icon input-icon"
							icon-class="password"
						/>
					</template>
				</el-input>
			</el-form-item>
			<el-form-item prop="confirmPassword">
				<el-input
					v-model="registerForm.confirmPassword"
					auto-complete="off"
					placeholder="确认密码"
					size="large"
					type="password"
					@keyup.enter="handleRegister"
				>
					<template #prefix
					>
						<svg-icon
							class="el-input__icon input-icon"
							icon-class="password"
						/>
					</template>
				</el-input>
			</el-form-item>
			<el-form-item v-if="captchaEnabled" prop="code">
				<el-input
					v-model="registerForm.code"
					auto-complete="off"
					placeholder="验证码"
					size="large"
					style="width: 63%"
					@keyup.enter="handleRegister"
				>
					<template #prefix
					>
						<svg-icon
							class="el-input__icon input-icon"
							icon-class="validCode"
						/>
					</template>
				</el-input>
				<div class="register-code">
					<img
						:src="codeUrl"
						class="register-code-img"
						@click="getCode"
					/>
				</div>
			</el-form-item>
			<el-form-item style="width: 100%">
				<el-button
					:loading="loading"
					size="large"
					style="width: 100%"
					type="primary"
					@click.prevent="handleRegister"
				>
					<span v-if="!loading">注 册</span>
					<span v-else>注 册 中...</span>
				</el-button>
				<div style="float: right">
					<router-link :to="'/login'" class="link-type"
					>使用已有账户登录
					</router-link
					>
				</div>
			</el-form-item>
		</el-form>
		<!--  底部  -->
		<div class="el-register-footer">
			<span>Copyright © 2024 DingHao All Rights Reserved.</span>
		</div>
	</div>
</template>

<script lang="ts" setup>
import { useRouter } from "vue-router";
import { ref } from "vue";
import { ElForm, ElMessageBox } from "element-plus";
import { getCodeImg, register } from "@/api/login";

const router = useRouter();
const registerRef = ref<InstanceType<typeof ElForm>>();
const registerForm = ref({
	username: "",
	password: "",
	confirmPassword: "",
	code: "",
	uuid: "",
});

// prettier-ignore
const equalToPassword = (rule: any, value: string, callback: Function) => {
	if (registerForm.value.password !== value) {
		callback(new Error("两次输入的密码不一致"));
	} else {
		callback();
	}
};

// prettier-ignore
const registerRules = {
	username: [
		{ required: true, trigger: "blur", message: "请输入您的账号" },
		{ min: 2, max: 20, message: "用户账号长度必须介于 2 和 20 之间", trigger: "blur" },
	],
	password: [
		{ required: true, trigger: "blur", message: "请输入您的密码" },
		{ min: 5, max: 20, message: "用户密码长度必须介于 5 和 20 之间", trigger: "blur" },
	],
	confirmPassword: [
		{ required: true, trigger: "blur", message: "请再次输入您的密码" },
		{ required: true, validator: equalToPassword, trigger: "blur" },
	],
	code: [{ required: true, trigger: "change", message: "请输入验证码" }],
};

const codeUrl = ref<string>("");
const loading = ref<boolean>(false);
const captchaEnabled = ref(true);

const handleRegister = () => {
	registerRef.value?.validate((valid: boolean) => {
		if (valid) {
			loading.value = true;
			// prettier-ignore
			register(registerForm.value).then((res: any) => {
				if (res.code === 200) {
					const username = registerForm.value.username;
					// prettier-ignore
					ElMessageBox.alert("<font color='red'>恭喜你，您的账号 " + username + " 注册成功！</font>", "系统提示", {
						dangerouslyUseHTMLString: true,
						type: "success",
					}).then(() => {
						router.push("/login");
					}).catch(() => {
					});
				}
			})
				.catch(() => {
					loading.value = false;
					if (captchaEnabled) {
						getCode();
					}
				});
		}
	});
};

const getCode = () => {
	getCodeImg().then((res: any) => {
		if (res.code === 200) {
			// prettier-ignore
			captchaEnabled.value = res.captchaEnabled === undefined ? true : res.captchaEnabled;
			if (captchaEnabled.value) {
				codeUrl.value = "data:image/gif;base64," + res.img;
				registerForm.value.uuid = res.uuid;
			}
		}
	});
};

getCode();
</script>

<style lang="scss" scoped>
.register {
	display: flex;
	justify-content: center;
	align-items: center;
	height: 100%;
	background-image: url("../assets/images/login-background.jpg");
	background-size: cover;
}

.title {
	margin: 0px auto 30px auto;
	text-align: center;
	color: #707070;
}

.register-form {
	border-radius: 6px;
	background: #ffffff;
	width: 400px;
	padding: 25px 25px 5px 25px;

	.el-input {
		height: 40px;

		input {
			height: 40px;
		}
	}

	.input-icon {
		height: 39px;
		width: 14px;
		margin-left: 0px;
	}
}

.register-tip {
	font-size: 13px;
	text-align: center;
	color: #bfbfbf;
}

.register-code {
	width: 33%;
	height: 40px;
	float: right;

	img {
		cursor: pointer;
		vertical-align: middle;
	}
}

.el-register-footer {
	height: 40px;
	line-height: 40px;
	position: fixed;
	bottom: 0;
	width: 100%;
	text-align: center;
	color: #fff;
	font-family: Arial;
	font-size: 12px;
	letter-spacing: 1px;
}

.register-code-img {
	height: 40px;
	padding-left: 12px;
}
</style>
